Documentation

influxctl write

The influxctl write command writes line protocol to InfluxDB Cloud Dedicated.

Provide line protocol in one of the following ways:

  • a string on the command line
  • a path to a file that contains line protocol
  • as a single dash (-) to read line protocol from stdin

Important to note

  • This command supports only one write request per execution, but does support multiple lines of line protocol and will batch data based on the --batch-size.
  • This command is not meant to be a full, feature-rich write tool. It’s meant for debug, triage, and initial exploration.

InfluxDB connection configuration

Your InfluxDB Cloud Dedicated cluster host and port are configured in your influxctl connection profile. Default uses TLS and port 443. You can set a default database and token to use for the query and write commands in your connection profile or pass them with the command using the --database and --token flags. Command line flags override settings in the connection profile.

Usage

influxctl write [flags] <LINE_PROTOCOL>

Arguments

ArgumentDescription
LINE_PROTOCOLLine protocol to write (command line string, path to file, or - to read from stdin)

Flags

FlagDescription
--batch-sizeNumber of metrics to write per batch (default is 10000)
--databaseDatabase to write to
--precisionPrecision of data timestamps (ns (default), us, ms, or s)
--timeoutClient timeout in seconds (default is 10)
--tokenDatabase token with write permissions on the target database
-h--helpOutput command help

Examples

In the examples below, replace the following:

  • DATABASE_TOKEN: Database token with write access to the target database
  • DATABASE_NAME: Name of the database to write to

Write line protocol to InfluxDB 3

influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
"home,room=Living\ Room temp=21.1,hum=35.9,co=0i 1641024000000000000 home,room=Kitchen temp=21.0,hum=35.9,co=0i 1641024000000000000 home,room=Living\ Room temp=21.4,hum=35.9,co=0i 1641027600000000000 home,room=Kitchen temp=23.0,hum=36.2,co=0i 1641027600000000000 "
influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
/path/to/metrics.lp
cat ./metrics.lp | influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
-

Write line protocol to InfluxDB 3 with non-default timestamp precision

influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--precision s \ "home,room=Living\ Room temp=21.1,hum=35.9,co=0i 1641024000 home,room=Kitchen temp=21.0,hum=35.9,co=0i 1641024000 home,room=Living\ Room temp=21.4,hum=35.9,co=0i 1641027600 home,room=Kitchen temp=23.0,hum=36.2,co=0i 1641027600 "
influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--precision s \ /path/to/metrics.lp
cat ./metrics.lp | influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--precision s \ -

Write line protocol to InfluxDB 3 with a custom batch size

influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--batch-size 5000 \ "home,room=Living\ Room temp=21.1,hum=35.9,co=0i 1641024000000000000 home,room=Kitchen temp=21.0,hum=35.9,co=0i 1641024000000000000 home,room=Living\ Room temp=21.4,hum=35.9,co=0i 1641027600000000000 home,room=Kitchen temp=23.0,hum=36.2,co=0i 1641027600000000000 "
influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--batch-size 5000 \ /path/to/metrics.lp
cat ./metrics.lp | influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--batch-size 5000 \ -

Write line protocol to InfluxDB 3 with a custom client timeout

influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--timeout 20 \ "home,room=Living\ Room temp=21.1,hum=35.9,co=0i 1641024000 home,room=Kitchen temp=21.0,hum=35.9,co=0i 1641024000 home,room=Living\ Room temp=21.4,hum=35.9,co=0i 1641027600 home,room=Kitchen temp=23.0,hum=36.2,co=0i 1641027600 "
influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--timeout 20 \ /path/to/metrics.lp
cat ./metrics.lp | influxctl write \
  --token 
DATABASE_TOKEN
\
--database
DATABASE_NAME
\
--timeout 20 \ -

Write line protocol to InfluxDB 3 using credentials from the connection profile

The following example uses the database and token defined in the default connection profile.

```sh influxctl write "home,room=Living\ Room temp=21.1,hum=35.9,co=0i 1641024000000000000 home,room=Kitchen temp=21.0,hum=35.9,co=0i 1641024000000000000 home,room=Living\ Room temp=21.4,hum=35.9,co=0i 1641027600000000000 home,room=Kitchen temp=23.0,hum=36.2,co=0i 1641027600000000000 " ```

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InfluxDB OSS 2.9.0: API tokens are hashed by default

Stronger token security in InfluxDB OSS 2.9.0 — tokens are hashed on disk by default. Existing tokens are hashed on first startup and can’t be recovered afterward. Capture any plaintext tokens you still need before you upgrade.

View InfluxDB OSS 2.9.0 release notes

Hashed tokens authenticate exactly like unhashed tokens — clients and integrations keep working.

Also new in 2.9.0:

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View Explorer 1.9 release notes

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For more details, see Explorer 1.9 release notes

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For more information, see the InfluxDB 3 Core release notes.

InfluxDB 3.10 is now available

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Key updates in InfluxDB 3 Enterprise 3.10:

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For more information, see the InfluxDB 3 Enterprise release notes

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On September 15, 2026, the latest tag for InfluxDB Docker images will point to InfluxDB 3 Core. To avoid unexpected upgrades, use specific version tags in your Docker deployments.

If using Docker to install and run InfluxDB, the latest tag will point to InfluxDB 3 Core. To avoid unexpected upgrades, use specific version tags in your Docker deployments. For example, if using Docker to run InfluxDB v2, replace the latest version tag with a specific version tag in your Docker pull command–for example:

docker pull influxdb:2